2-3 Weeks. 45 Day Lowest Price - 100% Satisfaction Guarantee. The MSR400 is a bi-amplified 2-way system, featuring 400 watts maximum burst power that drives the 12" cone woofer and 1.75" V.C. compression driver. Frequency division is accomplished prior to the power amplifiers via a line-level electronic crossover. This eliminates the problems with loss, distortion, and phase that are virtually unavoidable in conventional passive crossover networks.